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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1746 (Anti-Theft System - Passive Anti-Theft System (Pats) (Except Hybrid)) >> Diagnosis And Testing >> Principles of Operation >> Anti-Theft Indicator >> Unlimited Key Mode

Unlimited Key Mode

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

PATS contains a feature called unlimited key mode and uses the UNL_KEY_MODE PID. This feature allows a customer to program more than 8 keys to their vehicle if they request it. Each vehicle in unlimited key mode is set up with a special unlimited transponder security key code. This allows all the customer vehicles to share the same mechanically cut keys, but no other keys from outside can be used to operate the vehicles. For an individual customer, any randomly selected security key that has been previously mechanically cut and electronically programmed to the vehicle is acceptable. Refer to SPARE KEY PROGRAMMING - UNLIMITED KEY MODE  in this service information.

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